<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			div::before {
				content: "博为峰";
			}

			div::after {
				content: "培训";
			}
		</style>
	</head>
	<body>
		<div>学掌门</div>
	</body>
</html>
